Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
|
Outline of Final Research Achievements |
Type 2 diabetes is exacerbated by hyperglycemia induced glucotoxicity, impairment of insulin secretion and suppression of insulin gene expression in pancreatic beta cells. We discovered novel signaling pathway involved in glucotoxicity such as candidate plasticity gene 16 (CPG16) and Jun dimerization protein 2 (JDP2) pathway. CPG16 suppressed up-regulation of insulin promoter activity by JDP2 through phosphorylation of Thr 116 in JDP2. Furthermore, JDP2 regulated activation and suppression of insulin gene expression via association of insulin transcription factors, MafA and ATF2. These results suggested that CPG16-JDP2 pathway may represent a therapeutic target in type 2 diabetes.
|